Sun-worshippers are being warned to take extra care as temperatures continue to sizzle ahead of the June bank holiday.

The HSE is advising people to take care during the hot weather, warning that the severe heat considerably increases the risk of heatstroke and heat exhaustion - especially among older people, children and outdoor workers.

"It's going to be more or less the same right up to the bank holiday," said forecaster Harm Luijkx.

"Monday is looking a little doubtful, given that we're predicting showers, but otherwise temperatures should remain high."

With glorious sunshine on the horizon, the HSE has issued some guidelines on sun care. Sunburn is the most immediate danger, and can increase the risk of heatstroke in the over-75s by almost two thirds.

Those people who are physically active in the heat, like labourers and athletes, should take particular care to avoid heat exhaustion.

While not overly serious, it can lead to a feeling of debility and, if not spotted early, it can also lead to heatstroke.

Somewhat rare in Ireland, this condition is very serious and, if not treated, the survival rate can be as low as 20pc among vulnerable people such as the elderly.

Heatstroke occurs when the body is no longer able to cool itself and a person's body temperature becomes dangerously high - putting a strain on the brain, heart, lungs, liver and kidneys.

Heatstroke or heat exhaustion can develop quickly over a few minutes - or gradually over several hours or days. Signs of both include tiredness, feeling faint or dizzy, headaches, muscle cramps and feeling sick and sweating heavily.